AN APPARATUS TO IMPROVE MIXTURE EFFICIENCY OF DESULFURIZATION DSI STYLE

摘要

A DSI(Duct Sorbent Injection) type device for improving mixing efficiency of desulfurization is provided to increase the contact time and the reaction region of the exhaust gas and the adsorbent by promoting mixing of an adsorbent and the exhaust gas that flows through a duct at a high flow rate, and minimize drag, i.e., generation of pressure loss or deposition of the adsorbent by installing the device within an exhaust gas flowing field during the application of the DSI process. In a mixing device for dispersing the adsorbent into exhaust gas by spraying an adsorbent supplied through an adsorbent inflow line(11) in a duct(13) having an exhaust gas inflow port(10) and a mixed gas exhaust port(15) installed at both sides thereof, a DSI(Duct Sorbent Injection) type device for improving mixing efficiency of desulfurization comprises: a plurality of adsorbent inflow ports(12) which are connected to the adsorbent inflow line, and spray the adsorbent from upper and lower sides of the duct; and a mixing plate which begins from the same line as the adsorbent inflow ports, and which includes an ascent part that is formed at the center thereof and has an ascending inclination plane, and descent parts that are connected to front ends of the ascent part and has descending inclination planes, wherein the device varies an air stream within the duct to induce the dispersion of the adsorbent.